import cv2 as cv
import numpy as np
from matplotlib import pyplot as plt

img = cv.imread('../test_datas/opencv-logo.png')
# 高斯滤波
blur = cv.GaussianBlur(img,(5,5),0)

res = np.hstack((img,blur))
cv.imshow('res',res)
cv.waitKey(0)
cv.destroyAllWindows()